Question

A and B together can complete a piece of work in 4 days .if a alone can complete the same work in 12 days , in how many days can b alone complete that work?​

Answer 1

Answer:

A's 1 day work =1/12

let B' s 1 day work be 1/x then

1/12+1/x=1/4( A and B' s 1 daywork)

1/x=1/4-1/12

1/x=3/12-1/12

1/x=2/12

= 1/6

therefore B will take 6 days